Graphene surface plasmon polaritons with opposite in-plane electron oscillations along its two surfaces

被引：41

作者：

Liang, Huawei ^{[1
,2
]}

Ruan, Shuangchen ^{[1
,2
]}

Zhang, Min ^{[1
,2
]}

Su, Hong ^{[1
,2
]}

Li, Irene Ling ^{[1
,2
]}

机构：

[1] Shenzhen Univ, Coll Optoelect Engn, Shenzhen Key Lab Laser Engn, Shenzhen 518060, Peoples R China

[2] Shenzhen Univ, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 09期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

LONG-RANGE PROPAGATION; OPTICAL MODULATOR; FUTURE;

D O I：

10.1063/1.4929886

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We predict the existence of a surface plasmon polariton (SPP) mode that can be guided by a graphene monolayer, regardless of the sign of the imaginary part of its conductivity. In this mode, in-plane electron oscillations along two surfaces of graphene are of opposite directions, which is very different from conventional SPPs on graphene. Significantly, coating graphene with dielectric films yields a way to guide the SPPs with both sub-wavelength mode widths and ultra-long propagation distances. In particular, the mode characteristics are very sensitive to the chemical potential of graphene, so the graphene-based waveguide can find applications in many optoelectronic devices. (C) 2015 Author(s).

引用

页数：4

共 27 条

[1] Surface plasmon subwavelength optics [J].